145263631 has 8 divisors (see below), whose sum is σ = 148304000. Its totient is φ = 142244640.

The previous prime is 145263577. The next prime is 145263637. The reversal of 145263631 is 136362541.

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

It is a cyclic number.

It is not a de Polignac number, because 145263631 - 2²³ = 136875023 is a prime.

It is a super-2 number, since 2×145263631² = 42203044982608322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145263593 and 145263602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145263637) 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 7 ways as a sum of consecutive naturals, for example, 8770 + ... + 19168.

It is an arithmetic number, because the mean of its divisors is an integer number (18538000).

Almost surely, 2^145263631 is an apocalyptic number.

145263631 is a deficient number, since it is larger than the sum of its proper divisors (3040369).

145263631 is a wasteful number, since it uses less digits than its factorization.

145263631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10689.

The product of its digits is 12960, while the sum is 31.

The square root of 145263631 is about 12052.5362890970. The cubic root of 145263631 is about 525.6769872698.

The spelling of 145263631 in words is "one hundred forty-five million, two hundred sixty-three thousand, six hundred thirty-one".