46801581 has 4 divisors (see below), whose sum is σ = 62402112. Its totient is φ = 31201052.

The previous prime is 46801571. The next prime is 46801591. The reversal of 46801581 is 18510864.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (46801571) and next prime (46801591).

It is a cyclic number.

It is not a de Polignac number, because 46801581 - 2¹³ = 46793389 is a prime.

It is a super-2 number, since 2×46801581² = 4380775968199122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (46801511) 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, 7800261 + ... + 7800266.

It is an arithmetic number, because the mean of its divisors is an integer number (15600528).

Almost surely, 2^46801581 is an apocalyptic number.

It is an amenable number.

46801581 is a deficient number, since it is larger than the sum of its proper divisors (15600531).

46801581 is a wasteful number, since it uses less digits than its factorization.

46801581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15600530.

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 46801581 is about 6841.1681020130. The cubic root of 46801581 is about 360.3740479497.

The spelling of 46801581 in words is "forty-six million, eight hundred one thousand, five hundred eighty-one".