1501020049 has 27 divisors (see below), whose sum is σ = 1663835313. Its totient is φ = 1353835392.

The previous prime is 1501020023. The next prime is 1501020061. The reversal of 1501020049 is 9400201051.

The square root of 1501020049 is 38743.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 376088449 + 1124931600 = 19393^2 + 33540^2 .

It is not a de Polignac number, because 1501020049 - 2²¹ = 1498922897 is a prime.

It is a super-2 number, since 2×1501020049² = 4506122374999924802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1501020449) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 28321107 + ... + 28321159.

Almost surely, 2^1501020049 is an apocalyptic number.

1501020049 is the 38743-rd square number.

1501020049 is the 19372-nd centered octagonal number.

It is an amenable number.

1501020049 is a deficient number, since it is larger than the sum of its proper divisors (162815264).

1501020049 is an frugal number, since it uses more digits than its factorization.

1501020049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226 (or 113 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The cubic root of 1501020049 is about 1144.9736647833.

The spelling of 1501020049 in words is "one billion, five hundred one million, twenty thousand, forty-nine".