155401430 has 32 divisors (see below), whose sum is σ = 290550240. Its totient is φ = 59772160.

The previous prime is 155401417. The next prime is 155401489. The reversal of 155401430 is 34104551.

155401430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 155401396 and 155401405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80537 + ... + 82443.

It is an arithmetic number, because the mean of its divisors is an integer number (9079695).

Almost surely, 2^155401430 is an apocalyptic number.

155401430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155401430 is a deficient number, since it is larger than the sum of its proper divisors (135148810).

155401430 is a wasteful number, since it uses less digits than its factorization.

155401430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2224.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 155401430 is about 12466.0109898877. The cubic root of 155401430 is about 537.6318681321.

Adding to 155401430 its reverse (34104551), we get a palindrome (189505981).

The spelling of 155401430 in words is "one hundred fifty-five million, four hundred one thousand, four hundred thirty".