155400611 has 16 divisors (see below), whose sum is σ = 163435968. Its totient is φ = 147638400.

The previous prime is 155400577. The next prime is 155400617. The reversal of 155400611 is 116004551.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-155400611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155400617) by changing a digit.

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, 229205 + ... + 229881.

It is an arithmetic number, because the mean of its divisors is an integer number (10214748).

Almost surely, 2^155400611 is an apocalyptic number.

155400611 is a deficient number, since it is larger than the sum of its proper divisors (8035357).

155400611 is an equidigital number, since it uses as much as digits as its factorization.

155400611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 155400611 is about 12465.9781405231. The cubic root of 155400611 is about 537.6309236507.

The spelling of 155400611 in words is "one hundred fifty-five million, four hundred thousand, six hundred eleven".