4981091 has 2 divisors, whose sum is σ = 4981092. Its totient is φ = 4981090.

The previous prime is 4981057. The next prime is 4981103. The reversal of 4981091 is 1901894.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4981091 - 2⁶ = 4981027 is a prime.

It is a super-2 number, since 2×4981091² = 49622535100562, which contains 22 as substring.

It is equal to p₃₄₇₂₇₉ and since 4981091 and 347279 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (4987091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2490545 + 2490546.

It is an arithmetic number, because the mean of its divisors is an integer number (2490546).

Almost surely, 2^4981091 is an apocalyptic number.

4981091 is a deficient number, since it is larger than the sum of its proper divisors (1).

4981091 is an equidigital number, since it uses as much as digits as its factorization.

4981091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 4981091 is about 2231.8357914506. The cubic root of 4981091 is about 170.7817627931.

The spelling of 4981091 in words is "four million, nine hundred eighty-one thousand, ninety-one".