1215001048 has 32 divisors (see below), whose sum is σ = 2336065200. Its totient is φ = 592238592.

The previous prime is 1215001003. The next prime is 1215001049. The reversal of 1215001048 is 8401005121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1215001049) 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, 40308 + ... + 63676.

Almost surely, 2^1215001048 is an apocalyptic number.

It is an amenable number.

1215001048 is a deficient number, since it is larger than the sum of its proper divisors (1121064152).

1215001048 is a wasteful number, since it uses less digits than its factorization.

1215001048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23539 (or 23535 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 1215001048 is about 34856.8651487766. The cubic root of 1215001048 is about 1067.0682981473.

Adding to 1215001048 its reverse (8401005121), we get a palindrome (9616006169).

The spelling of 1215001048 in words is "one billion, two hundred fifteen million, one thousand, forty-eight".