1143007215 has 32 divisors (see below), whose sum is σ = 2093062656. Its totient is φ = 521769600.

The previous prime is 1143007211. The next prime is 1143007237. The reversal of 1143007215 is 5127003411.

It is not a de Polignac number, because 1143007215 - 2² = 1143007211 is a prime.

It is a super-3 number, since 3×1143007215³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143007211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69540 + ... + 84390.

It is an arithmetic number, because the mean of its divisors is an integer number (65408208).

Almost surely, 2^1143007215 is an apocalyptic number.

1143007215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1143007215 is a deficient number, since it is larger than the sum of its proper divisors (950055441).

1143007215 is a wasteful number, since it uses less digits than its factorization.

1143007215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15599.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 1143007215 is about 33808.3897132058. The cubic root of 1143007215 is about 1045.5616784672.

The spelling of 1143007215 in words is "one billion, one hundred forty-three million, seven thousand, two hundred fifteen".