10132981 has 4 divisors (see below), whose sum is σ = 10210464. Its totient is φ = 10055500.

The previous prime is 10132979. The next prime is 10132987. The reversal of 10132981 is 18923101.

10132981 = T₃₂₆ + T₃₂₇ + ... + T₄₅₆.

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, and also an emirpimes, since its reverse is a distinct semiprime: 18923101 = 4261 ⋅4441.

It is a cyclic number.

It is not a de Polignac number, because 10132981 - 2¹ = 10132979 is a prime.

It is a super-2 number, since 2×10132981² = 205354607892722, 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 (10132987) 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, 38545 + ... + 38806.

It is an arithmetic number, because the mean of its divisors is an integer number (2552616).

Almost surely, 2^10132981 is an apocalyptic number.

It is an amenable number.

10132981 is a deficient number, since it is larger than the sum of its proper divisors (77483).

10132981 is an equidigital number, since it uses as much as digits as its factorization.

10132981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77482.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 10132981 is about 3183.2343614632. The cubic root of 10132981 is about 216.3942630560.

The spelling of 10132981 in words is "ten million, one hundred thirty-two thousand, nine hundred eighty-one".