1501372601 has 4 divisors (see below), whose sum is σ = 1553144100. Its totient is φ = 1449601104.

The previous prime is 1501372591. The next prime is 1501372619. The reversal of 1501372601 is 1062731051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1062731051 = 691 ⋅1537961.

It can be written as a sum of positive squares in 2 ways, for example, as 546624400 + 954748201 = 23380^2 + 30899^2 .

It is a cyclic number.

It is not a de Polignac number, because 1501372601 - 2²² = 1497178297 is a prime.

It is a super-3 number, since 3×1501372601³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1501372651) 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, 25885706 + ... + 25885763.

It is an arithmetic number, because the mean of its divisors is an integer number (388286025).

Almost surely, 2^1501372601 is an apocalyptic number.

It is an amenable number.

1501372601 is a deficient number, since it is larger than the sum of its proper divisors (51771499).

1501372601 is an equidigital number, since it uses as much as digits as its factorization.

1501372601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51771498.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 1501372601 is about 38747.5496128465. The cubic root of 1501372601 is about 1145.0632996412.

The spelling of 1501372601 in words is "one billion, five hundred one million, three hundred seventy-two thousand, six hundred one".