615120406 has 8 divisors (see below), whose sum is σ = 923941584. Its totient is φ = 307139880.

The previous prime is 615120403. The next prime is 615120413. The reversal of 615120406 is 604021516.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×615120406² = 756746227755209672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (615120403) 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, 208330 + ... + 211261.

It is an arithmetic number, because the mean of its divisors is an integer number (115492698).

Almost surely, 2^615120406 is an apocalyptic number.

615120406 is a deficient number, since it is larger than the sum of its proper divisors (308821178).

615120406 is a wasteful number, since it uses less digits than its factorization.

615120406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420326.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 615120406 is about 24801.6210357307. The cubic root of 615120406 is about 850.4589936248.

The spelling of 615120406 in words is "six hundred fifteen million, one hundred twenty thousand, four hundred six".