150405655 has 4 divisors (see below), whose sum is σ = 180486792. Its totient is φ = 120324520.

The previous prime is 150405649. The next prime is 150405709. The reversal of 150405655 is 556504051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 556504051 = 1301 ⋅427751.

It is not a de Polignac number, because 150405655 - 2¹⁷ = 150274583 is a prime.

It is a super-2 number, since 2×150405655² = 45243722111958050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 15040561 + ... + 15040570.

It is an arithmetic number, because the mean of its divisors is an integer number (45121698).

Almost surely, 2^150405655 is an apocalyptic number.

150405655 is a deficient number, since it is larger than the sum of its proper divisors (30081137).

150405655 is an equidigital number, since it uses as much as digits as its factorization.

150405655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30081136.

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 150405655 is about 12263.9983284409. The cubic root of 150405655 is about 531.8078232043.

The spelling of 150405655 in words is "one hundred fifty million, four hundred five thousand, six hundred fifty-five".