145700631 has 12 divisors (see below), whose sum is σ = 211386552. Its totient is φ = 96704496.

The previous prime is 145700587. The next prime is 145700663. The reversal of 145700631 is 136007541.

It is not a de Polignac number, because 145700631 - 2¹³ = 145692439 is a prime.

It is a super-2 number, since 2×145700631² = 42457347747596322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145700595 and 145700604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145700671) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33616 + ... + 37701.

It is an arithmetic number, because the mean of its divisors is an integer number (17615546).

Almost surely, 2^145700631 is an apocalyptic number.

145700631 is a deficient number, since it is larger than the sum of its proper divisors (65685921).

145700631 is a wasteful number, since it uses less digits than its factorization.

145700631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71550 (or 71547 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 145700631 is about 12070.6516394104. The cubic root of 145700631 is about 526.2035950377.

The spelling of 145700631 in words is "one hundred forty-five million, seven hundred thousand, six hundred thirty-one".