1252642354 has 4 divisors (see below), whose sum is σ = 1878963534. Its totient is φ = 626321176.

The previous prime is 1252642351. The next prime is 1252642361. The reversal of 1252642354 is 4532462521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4532462521 = 19 ⋅238550659.

It can be written as a sum of positive squares in only one way, i.e., 957593025 + 295049329 = 30945^2 + 17177^2 .

It is a super-2 number, since 2×1252642354² = 3138225734069322632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1252642351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 313160587 + ... + 313160590.

Almost surely, 2^1252642354 is an apocalyptic number.

1252642354 is a deficient number, since it is larger than the sum of its proper divisors (626321180).

1252642354 is an equidigital number, since it uses as much as digits as its factorization.

1252642354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626321179.

The product of its digits is 57600, while the sum is 34.

The square root of 1252642354 is about 35392.6878606302. The cubic root of 1252642354 is about 1077.9758480206.

The spelling of 1252642354 in words is "one billion, two hundred fifty-two million, six hundred forty-two thousand, three hundred fifty-four".