1102142452 has 6 divisors (see below), whose sum is σ = 1928749298. Its totient is φ = 551071224.

The previous prime is 1102142423. The next prime is 1102142467. The reversal of 1102142452 is 2542412011.

It can be written as a sum of positive squares in only one way, i.e., 1100514276 + 1628176 = 33174^2 + 1276^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137767803 + ... + 137767810.

Almost surely, 2^1102142452 is an apocalyptic number.

It is an amenable number.

1102142452 is a deficient number, since it is larger than the sum of its proper divisors (826606846).

1102142452 is a wasteful number, since it uses less digits than its factorization.

1102142452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275535617 (or 275535615 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 1102142452 is about 33198.5308711093. The cubic root of 1102142452 is about 1032.9498658534.

Adding to 1102142452 its reverse (2542412011), we get a palindrome (3644554463).

The spelling of 1102142452 in words is "one billion, one hundred two million, one hundred forty-two thousand, four hundred fifty-two".