155145475 has 6 divisors (see below), whose sum is σ = 192380420. Its totient is φ = 124116360.

The previous prime is 155145461. The next prime is 155145521. The reversal of 155145475 is 574541551.

155145475 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 155145475 - 2⁹ = 155144963 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3102885 + ... + 3102934.

Almost surely, 2^155145475 is an apocalyptic number.

155145475 is a deficient number, since it is larger than the sum of its proper divisors (37234945).

155145475 is an equidigital number, since it uses as much as digits as its factorization.

155145475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6205829 (or 6205824 counting only the distinct ones).

The product of its digits is 70000, while the sum is 37.

The square root of 155145475 is about 12455.7406443776. The cubic root of 155145475 is about 537.3365358342.

It can be divided in two parts, 1 and 55145475, that added together give a square (55145476 = 7426²).

The spelling of 155145475 in words is "one hundred fifty-five million, one hundred forty-five thousand, four hundred seventy-five".