1107257155 has 4 divisors (see below), whose sum is σ = 1328708592. Its totient is φ = 885805720.

The previous prime is 1107257147. The next prime is 1107257201. The reversal of 1107257155 is 5517527011.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1107257155 - 2³ = 1107257147 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1107257155.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110725711 + ... + 110725720.

It is an arithmetic number, because the mean of its divisors is an integer number (332177148).

Almost surely, 2^1107257155 is an apocalyptic number.

1107257155 is a deficient number, since it is larger than the sum of its proper divisors (221451437).

1107257155 is an equidigital number, since it uses as much as digits as its factorization.

1107257155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221451436.

The product of its (nonzero) digits is 12250, while the sum is 34.

The square root of 1107257155 is about 33275.4737757406. The cubic root of 1107257155 is about 1034.5452676570.

The spelling of 1107257155 in words is "one billion, one hundred seven million, two hundred fifty-seven thousand, one hundred fifty-five".