147652121 has 4 divisors (see below), whose sum is σ = 149855952. Its totient is φ = 145448292.

The previous prime is 147652073. The next prime is 147652151. The reversal of 147652121 is 121256741.

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: 121256741 = 59 ⋅2055199.

It is a cyclic number.

It is not a de Polignac number, because 147652121 - 2²² = 143457817 is a prime.

It is a super-2 number, since 2×147652121² = 43602297671597282, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (147652151) 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, 1101815 + ... + 1101948.

It is an arithmetic number, because the mean of its divisors is an integer number (37463988).

Almost surely, 2^147652121 is an apocalyptic number.

It is an amenable number.

147652121 is a deficient number, since it is larger than the sum of its proper divisors (2203831).

147652121 is an equidigital number, since it uses as much as digits as its factorization.

147652121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2203830.

The product of its digits is 3360, while the sum is 29.

The square root of 147652121 is about 12151.2189100518. The cubic root of 147652121 is about 528.5424781632.

The spelling of 147652121 in words is "one hundred forty-seven million, six hundred fifty-two thousand, one hundred twenty-one".