145742902 has 4 divisors (see below), whose sum is σ = 218614356. Its totient is φ = 72871450.

The previous prime is 145742897. The next prime is 145742903. The reversal of 145742902 is 209247541.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145742903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36435724 + ... + 36435727.

It is an arithmetic number, because the mean of its divisors is an integer number (54653589).

Almost surely, 2^145742902 is an apocalyptic number.

145742902 is a deficient number, since it is larger than the sum of its proper divisors (72871454).

145742902 is an equidigital number, since it uses as much as digits as its factorization.

145742902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72871453.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 145742902 is about 12072.4024949469. The cubic root of 145742902 is about 526.2544779138.

The spelling of 145742902 in words is "one hundred forty-five million, seven hundred forty-two thousand, nine hundred two".