153421401 has 12 divisors (see below), whose sum is σ = 237959952. Its totient is φ = 87669288.

The previous prime is 153421391. The next prime is 153421421. The reversal of 153421401 is 104124351.

It is not a de Polignac number, because 153421401 - 2⁶ = 153421337 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (153421421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 521695 + ... + 521988.

It is an arithmetic number, because the mean of its divisors is an integer number (19829996).

Almost surely, 2^153421401 is an apocalyptic number.

It is an amenable number.

153421401 is a deficient number, since it is larger than the sum of its proper divisors (84538551).

153421401 is a wasteful number, since it uses less digits than its factorization.

153421401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043700 (or 1043693 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 153421401 is about 12386.3392897175. The cubic root of 153421401 is about 535.3387100222.

Adding to 153421401 its reverse (104124351), we get a palindrome (257545752).

The spelling of 153421401 in words is "one hundred fifty-three million, four hundred twenty-one thousand, four hundred one".