155059087 has 4 divisors (see below), whose sum is σ = 156174760. Its totient is φ = 153943416.

The previous prime is 155059061. The next prime is 155059103. The reversal of 155059087 is 780950551.

155059087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 780950551 = 2707 ⋅288493.

It is a cyclic number.

It is not a de Polignac number, because 155059087 - 2¹⁹ = 154534799 is a prime.

It is a super-2 number, since 2×155059087² = 48086640922547138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155059787) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 557628 + ... + 557905.

It is an arithmetic number, because the mean of its divisors is an integer number (39043690).

Almost surely, 2^155059087 is an apocalyptic number.

155059087 is a deficient number, since it is larger than the sum of its proper divisors (1115673).

155059087 is a wasteful number, since it uses less digits than its factorization.

155059087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115672.

The product of its (nonzero) digits is 63000, while the sum is 40.

The square root of 155059087 is about 12452.2723629063. The cubic root of 155059087 is about 537.2367841934.

The spelling of 155059087 in words is "one hundred fifty-five million, fifty-nine thousand, eighty-seven".