145415019902 has 8 divisors (see below), whose sum is σ = 221110509936. Its totient is φ = 71711516592.

The previous prime is 145415019733. The next prime is 145415019991. The reversal of 145415019902 is 209910514541.

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

It is a super-2 number, since 2×145415019902² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 145415019902.

It is a congruent number.

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, 497996498 + ... + 497996789.

It is an arithmetic number, because the mean of its divisors is an integer number (27638813742).

Almost surely, 2^145415019902 is an apocalyptic number.

145415019902 is a deficient number, since it is larger than the sum of its proper divisors (75695490034).

145415019902 is an equidigital number, since it uses as much as digits as its factorization.

145415019902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 995993362.

The product of its (nonzero) digits is 64800, while the sum is 41.

The spelling of 145415019902 in words is "one hundred forty-five billion, four hundred fifteen million, nineteen thousand, nine hundred two".