1513754649 has 63 divisors (see below), whose sum is σ = 2513866117. Its totient is φ = 910423800.

The previous prime is 1513754639. The next prime is 1513754653. The reversal of 1513754649 is 9464573151.

The square root of 1513754649 is 38907.

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

1513754649 is a `hidden beast` number, since 1 + 513 + 75 + 4 + 64 + 9 = 666.

It is not a de Polignac number, because 1513754649 - 2²³ = 1505366041 is a prime.

It is a super-2 number, since 2×1513754649² = 4582906274738226402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1513754609) by changing a digit.

It is a polite number, since it can be written in 62 ways as a sum of consecutive naturals, for example, 11555314 + ... + 11555444.

Almost surely, 2^1513754649 is an apocalyptic number.

1513754649 is the 38907-th square number.

1513754649 is the 19454-th centered octagonal number.

It is an amenable number.

1513754649 is a deficient number, since it is larger than the sum of its proper divisors (1000111468).

1513754649 is an frugal number, since it uses more digits than its factorization.

1513754649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302 (or 145 counting only the distinct ones).

The product of its digits is 453600, while the sum is 45.

The cubic root of 1513754649 is about 1148.2025225243.

The spelling of 1513754649 in words is "one billion, five hundred thirteen million, seven hundred fifty-four thousand, six hundred forty-nine".