2501720146 has 8 divisors (see below), whose sum is σ = 3854001420. Its totient is φ = 1217053008.

The previous prime is 2501720141. The next prime is 2501720159. The reversal of 2501720146 is 6410271052.

It can be written as a sum of positive squares in 2 ways, for example, as 2416803921 + 84916225 = 49161^2 + 9215^2 .

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

It is a super-2 number, since 2×2501720146² = 12517207377804522632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2501720141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16903441 + ... + 16903588.

Almost surely, 2^2501720146 is an apocalyptic number.

2501720146 is a deficient number, since it is larger than the sum of its proper divisors (1352281274).

2501720146 is a wasteful number, since it uses less digits than its factorization.

2501720146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33807068.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 2501720146 is about 50017.1985021152. The cubic root of 2501720146 is about 1357.5200165722.

Adding to 2501720146 its reverse (6410271052), we get a palindrome (8911991198).

The spelling of 2501720146 in words is "two billion, five hundred one million, seven hundred twenty thousand, one hundred forty-six".