126620153 has 4 divisors (see below), whose sum is σ = 138131088. Its totient is φ = 115109220.

The previous prime is 126620149. The next prime is 126620167. The reversal of 126620153 is 351026621.

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 a cyclic number.

It is not a de Polignac number, because 126620153 - 2² = 126620149 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126620113) 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, 5755451 + ... + 5755472.

It is an arithmetic number, because the mean of its divisors is an integer number (34532772).

Almost surely, 2^126620153 is an apocalyptic number.

It is an amenable number.

126620153 is a deficient number, since it is larger than the sum of its proper divisors (11510935).

126620153 is a wasteful number, since it uses less digits than its factorization.

126620153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11510934.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 126620153 is about 11252.5620638146. The cubic root of 126620153 is about 502.1509376658.

Adding to 126620153 its reverse (351026621), we get a palindrome (477646774).

The spelling of 126620153 in words is "one hundred twenty-six million, six hundred twenty thousand, one hundred fifty-three".