155651430 has 32 divisors (see below), whose sum is σ = 407524608. Its totient is φ = 37733600.

The previous prime is 155651423. The next prime is 155651453. The reversal of 155651430 is 34156551.

It is a super-2 number, since 2×155651430² = 48454735322089800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 235506 + ... + 236165.

It is an arithmetic number, because the mean of its divisors is an integer number (12735144).

Almost surely, 2^155651430 is an apocalyptic number.

155651430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155651430 is an abundant number, since it is smaller than the sum of its proper divisors (251873178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155651430 is a wasteful number, since it uses less digits than its factorization.

155651430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471692.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 155651430 is about 12476.0342256664. The cubic root of 155651430 is about 537.9200163937.

The spelling of 155651430 in words is "one hundred fifty-five million, six hundred fifty-one thousand, four hundred thirty".