155031827401 has 4 divisors (see below), whose sum is σ = 169125629904. Its totient is φ = 140938024900.

The previous prime is 155031827383. The next prime is 155031827411. The reversal of 155031827401 is 104728130551.

155031827401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 155031827401 - 2¹⁵ = 155031794633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155031827411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7046901235 + ... + 7046901256.

It is an arithmetic number, because the mean of its divisors is an integer number (42281407476).

Almost surely, 2^155031827401 is an apocalyptic number.

155031827401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

155031827401 is a deficient number, since it is larger than the sum of its proper divisors (14093802503).

155031827401 is a wasteful number, since it uses less digits than its factorization.

155031827401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14093802502.

The product of its (nonzero) digits is 33600, while the sum is 37.

Adding to 155031827401 its reverse (104728130551), we get a palindrome (259759957952).

The spelling of 155031827401 in words is "one hundred fifty-five billion, thirty-one million, eight hundred twenty-seven thousand, four hundred one".