145694641 has 32 divisors (see below), whose sum is σ = 170069760. Its totient is φ = 123918336.

The previous prime is 145694611. The next prime is 145694671. The reversal of 145694641 is 146496541.

It is an interprime number because it is at equal distance from previous prime (145694611) and next prime (145694671).

It is a cyclic number.

It is not a de Polignac number, because 145694641 - 2¹¹ = 145692593 is a prime.

It is a super-2 number, since 2×145694641² = 42453856832237762, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 145694594 and 145694603.

It is not an unprimeable number, because it can be changed into a prime (145694611) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 872340 + ... + 872506.

It is an arithmetic number, because the mean of its divisors is an integer number (5314680).

Almost surely, 2^145694641 is an apocalyptic number.

It is an amenable number.

145694641 is a deficient number, since it is larger than the sum of its proper divisors (24375119).

145694641 is a wasteful number, since it uses less digits than its factorization.

145694641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313.

The product of its digits is 103680, while the sum is 40.

The square root of 145694641 is about 12070.4035143818. The cubic root of 145694641 is about 526.1963838982.

The spelling of 145694641 in words is "one hundred forty-five million, six hundred ninety-four thousand, six hundred forty-one".