1623461155 has 16 divisors (see below), whose sum is σ = 2064939264. Its totient is φ = 1221073920.

The previous prime is 1623461153. The next prime is 1623461183. The reversal of 1623461155 is 5511643261.

It is not a de Polignac number, because 1623461155 - 2¹ = 1623461153 is a prime.

It is a super-2 number, since 2×1623461155² = 5271252243587868050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1623461155.

It is not an unprimeable number, because it can be changed into a prime (1623461153) 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, 74599 + ... + 93871.

It is an arithmetic number, because the mean of its divisors is an integer number (129058704).

Almost surely, 2^1623461155 is an apocalyptic number.

1623461155 is a deficient number, since it is larger than the sum of its proper divisors (441478109).

1623461155 is a wasteful number, since it uses less digits than its factorization.

1623461155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20286.

The product of its digits is 21600, while the sum is 34.

The square root of 1623461155 is about 40292.1971974724. The cubic root of 1623461155 is about 1175.2961148967.

The spelling of 1623461155 in words is "one billion, six hundred twenty-three million, four hundred sixty-one thousand, one hundred fifty-five".