145645402 has 8 divisors (see below), whose sum is σ = 249677856. Its totient is φ = 62419452.

The previous prime is 145645387. The next prime is 145645411. The reversal of 145645402 is 204546541.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 5201608 + ... + 5201635.

It is an arithmetic number, because the mean of its divisors is an integer number (31209732).

Almost surely, 2^145645402 is an apocalyptic number.

145645402 is a deficient number, since it is larger than the sum of its proper divisors (104032454).

145645402 is a wasteful number, since it uses less digits than its factorization.

145645402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10403252.

The product of its (nonzero) digits is 19200, while the sum is 31.

The square root of 145645402 is about 12068.3636836151. The cubic root of 145645402 is about 526.1370993954.

The spelling of 145645402 in words is "one hundred forty-five million, six hundred forty-five thousand, four hundred two".