145213604 has 12 divisors (see below), whose sum is σ = 260992284. Its totient is φ = 70644384.

The previous prime is 145213553. The next prime is 145213619. The reversal of 145213604 is 406312541.

It can be written as a sum of positive squares in 2 ways, for example, as 133448704 + 11764900 = 11552^2 + 3430^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 490439 + ... + 490734.

It is an arithmetic number, because the mean of its divisors is an integer number (21749357).

Almost surely, 2^145213604 is an apocalyptic number.

It is an amenable number.

145213604 is a deficient number, since it is larger than the sum of its proper divisors (115778680).

145213604 is a wasteful number, since it uses less digits than its factorization.

145213604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981214 (or 981212 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 145213604 is about 12050.4607380797. The cubic root of 145213604 is about 525.6166347875.

The spelling of 145213604 in words is "one hundred forty-five million, two hundred thirteen thousand, six hundred four".