155515154 has 16 divisors (see below), whose sum is σ = 236862360. Its totient is φ = 76569600.

The previous prime is 155515147. The next prime is 155515159. The reversal of 155515154 is 451515551.

It can be written as a sum of positive squares in 4 ways, for example, as 146047225 + 9467929 = 12085^2 + 3077^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 155515154.

It is not an unprimeable number, because it can be changed into a prime (155515159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36992 + ... + 40980.

Almost surely, 2^155515154 is an apocalyptic number.

155515154 is a deficient number, since it is larger than the sum of its proper divisors (81347206).

155515154 is a wasteful number, since it uses less digits than its factorization.

155515154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4285.

The product of its digits is 12500, while the sum is 32.

The square root of 155515154 is about 12470.5715185793. The cubic root of 155515154 is about 537.7629839097.

The spelling of 155515154 in words is "one hundred fifty-five million, five hundred fifteen thousand, one hundred fifty-four".