145001394 has 16 divisors (see below), whose sum is σ = 322225440. Its totient is φ = 48333780.

The previous prime is 145001393. The next prime is 145001401. The reversal of 145001394 is 493100541.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (145001393) 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, 1342552 + ... + 1342659.

It is an arithmetic number, because the mean of its divisors is an integer number (20139090).

Almost surely, 2^145001394 is an apocalyptic number.

145001394 is an abundant number, since it is smaller than the sum of its proper divisors (177224046).

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

145001394 is a wasteful number, since it uses less digits than its factorization.

145001394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2685222 (or 2685216 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 145001394 is about 12041.6524613526. The cubic root of 145001394 is about 525.3604708075.

The spelling of 145001394 in words is "one hundred forty-five million, one thousand, three hundred ninety-four".