615142145 has 16 divisors (see below), whose sum is σ = 765967872. Its totient is φ = 473748480.

The previous prime is 615142141. The next prime is 615142159. The reversal of 615142145 is 541241516.

It is not a de Polignac number, because 615142145 - 2² = 615142141 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (615142141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19634 + ... + 40196.

It is an arithmetic number, because the mean of its divisors is an integer number (47872992).

Almost surely, 2^615142145 is an apocalyptic number.

It is an amenable number.

615142145 is a deficient number, since it is larger than the sum of its proper divisors (150825727).

615142145 is a wasteful number, since it uses less digits than its factorization.

615142145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20792.

The product of its digits is 4800, while the sum is 29.

The square root of 615142145 is about 24802.0592895026. The cubic root of 615142145 is about 850.4690122109.

The spelling of 615142145 in words is "six hundred fifteen million, one hundred forty-two thousand, one hundred forty-five".