37221541 has 16 divisors (see below), whose sum is σ = 43315200. Its totient is φ = 31328640.

The previous prime is 37221533. The next prime is 37221581. The reversal of 37221541 is 14512273.

It is a happy number.

It is not a de Polignac number, because 37221541 - 2³ = 37221533 is a prime.

It is a super-2 number, since 2×37221541² = 2770886228829362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37221581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 132321 + ... + 132601.

It is an arithmetic number, because the mean of its divisors is an integer number (2707200).

Almost surely, 2^37221541 is an apocalyptic number.

It is an amenable number.

37221541 is a deficient number, since it is larger than the sum of its proper divisors (6093659).

37221541 is a wasteful number, since it uses less digits than its factorization.

37221541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 564.

The product of its digits is 1680, while the sum is 25.

The square root of 37221541 is about 6100.9459102667. The cubic root of 37221541 is about 333.8859286313.

The spelling of 37221541 in words is "thirty-seven million, two hundred twenty-one thousand, five hundred forty-one".