256150405 has 16 divisors (see below), whose sum is σ = 351722880. Its totient is φ = 175430592.

The previous prime is 256150387. The next prime is 256150409. The reversal of 256150405 is 504051652.

It is a cyclic number.

It is not a de Polignac number, because 256150405 - 2¹⁷ = 256019333 is a prime.

It is a super-2 number, since 2×256150405² = 131226059963328050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (256150409) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 27711 + ... + 35779.

It is an arithmetic number, because the mean of its divisors is an integer number (21982680).

Almost surely, 2^256150405 is an apocalyptic number.

It is an amenable number.

256150405 is a deficient number, since it is larger than the sum of its proper divisors (95572475).

256150405 is an equidigital number, since it uses as much as digits as its factorization.

256150405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8988.

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 256150405 is about 16004.6994660943. The cubic root of 256150405 is about 635.0847469920.

The spelling of 256150405 in words is "two hundred fifty-six million, one hundred fifty thousand, four hundred five".