1242151510 has 16 divisors (see below), whose sum is σ = 2238055776. Its totient is φ = 496375488.

The previous prime is 1242151507. The next prime is 1242151517. The reversal of 1242151510 is 151512421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242151517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49794 + ... + 70453.

It is an arithmetic number, because the mean of its divisors is an integer number (139878486).

Almost surely, 2^1242151510 is an apocalyptic number.

1242151510 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1242151510 is a deficient number, since it is larger than the sum of its proper divisors (995904266).

1242151510 is a wasteful number, since it uses less digits than its factorization.

1242151510 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121287.

The product of its (nonzero) digits is 400, while the sum is 22.

The square root of 1242151510 is about 35244.1698724768. The cubic root of 1242151510 is about 1074.9580686727.

Adding to 1242151510 its reverse (151512421), we get a palindrome (1393663931).

The spelling of 1242151510 in words is "one billion, two hundred forty-two million, one hundred fifty-one thousand, five hundred ten".