2145701487 has 16 divisors (see below), whose sum is σ = 3081627648. Its totient is φ = 1324134240.

The previous prime is 2145701473. The next prime is 2145701489. The reversal of 2145701487 is 7841075412.

It is not a de Polignac number, because 2145701487 - 2⁴ = 2145701471 is a prime.

It is a super-2 number, since 2×2145701487² = 9208069742628022338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145701489) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 499428 + ... + 503705.

It is an arithmetic number, because the mean of its divisors is an integer number (192601728).

Almost surely, 2^2145701487 is an apocalyptic number.

2145701487 is a deficient number, since it is larger than the sum of its proper divisors (935926161).

2145701487 is a wasteful number, since it uses less digits than its factorization.

2145701487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003190.

The product of its (nonzero) digits is 62720, while the sum is 39.

The square root of 2145701487 is about 46321.7172285312. The cubic root of 2145701487 is about 1289.8021624376.

Adding to 2145701487 its reverse (7841075412), we get a palindrome (9986776899).

The spelling of 2145701487 in words is "two billion, one hundred forty-five million, seven hundred one thousand, four hundred eighty-seven".