145868634 has 16 divisors (see below), whose sum is σ = 324152640. Its totient is φ = 48622860.

The previous prime is 145868633. The next prime is 145868647. The reversal of 145868634 is 436868541.

145868634 is a `hidden beast` number, since 1 + 4 + 5 + 8 + 6 + 8 + 634 = 666.

145868634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 145868634.

It is not an unprimeable number, because it can be changed into a prime (145868633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1350582 + ... + 1350689.

It is an arithmetic number, because the mean of its divisors is an integer number (20259540).

Almost surely, 2^145868634 is an apocalyptic number.

145868634 is an abundant number, since it is smaller than the sum of its proper divisors (178284006).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145868634 is a wasteful number, since it uses less digits than its factorization.

145868634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2701282 (or 2701276 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 145868634 is about 12077.6087865107. The cubic root of 145868634 is about 526.4057671792.

It can be divided in two parts, 14586 and 8634, that added together give a triangular number (23220 = T₂₁₅).

The spelling of 145868634 in words is "one hundred forty-five million, eight hundred sixty-eight thousand, six hundred thirty-four".