145401002 has 4 divisors (see below), whose sum is σ = 218101506. Its totient is φ = 72700500.

The previous prime is 145400999. The next prime is 145401013. The reversal of 145401002 is 200104541.

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

It can be written as a sum of positive squares in only one way, i.e., 94692361 + 50708641 = 9731^2 + 7121^2 .

It is a super-2 number, since 2×145401002² = 42282902765208008, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36350249 + ... + 36350252.

Almost surely, 2^145401002 is an apocalyptic number.

145401002 is a deficient number, since it is larger than the sum of its proper divisors (72700504).

145401002 is an equidigital number, since it uses as much as digits as its factorization.

145401002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72700503.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 145401002 is about 12058.2337844313. The cubic root of 145401002 is about 525.8426401631.

Adding to 145401002 its reverse (200104541), we get a palindrome (345505543).

The spelling of 145401002 in words is "one hundred forty-five million, four hundred one thousand, two".