2261515465 has 8 divisors (see below), whose sum is σ = 2960529408. Its totient is φ = 1644738480.

The previous prime is 2261515429. The next prime is 2261515471. The reversal of 2261515465 is 5645151622.

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

It is not a de Polignac number, because 2261515465 - 2¹³ = 2261507273 is a prime.

It is a super-2 number, since 2×2261515465² = 10228904396868332450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20559177 + ... + 20559286.

It is an arithmetic number, because the mean of its divisors is an integer number (370066176).

Almost surely, 2^2261515465 is an apocalyptic number.

It is an amenable number.

2261515465 is a deficient number, since it is larger than the sum of its proper divisors (699013943).

2261515465 is a wasteful number, since it uses less digits than its factorization.

2261515465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41118479.

The product of its digits is 72000, while the sum is 37.

The square root of 2261515465 is about 47555.3936478293. The cubic root of 2261515465 is about 1312.6023797991.

The spelling of 2261515465 in words is "two billion, two hundred sixty-one million, five hundred fifteen thousand, four hundred sixty-five".